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Dairy Cattle And Reproduction

Subjects : industries, dairy
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Help to signal hormone levels which we need both in the brain right next to each other.






2. Urinary calculi.






3. What about the sperm for a bull which has been castrated but still has testicles?






4. Days which have increasing daylight hours

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5. 147 days






6. 24 hours before end of estrus cycle






7. Milk ~305 days - dry 60 days prior to calving






8. (male) pushes the testes upward toward the body for warmth or protection






9. When she is pregnant in her last trimester because she needs the energy to carry around and deliver the calf. and when the calf is born because the cow needs the fat to be deposit it into her milk for the calf's energy stores.






10. Reproduction. more offspring leads to more feed costs - but is offset by reproduction numbers






11. S-shaped inside body - relaxes to be exposed for breeding. Disadvantges: muscles weaken with age - cannot always hold it in - exposed to harsh outside conditions or stepped on.

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12. (LH) stimulates the Leydig cells to produce testosterone






13. 283 days






14. Not under a timeline - cow can not be sold as steak






15. Why Dairy calves are fed powdered milk.






16. Check feet and legs - look for masculine traits in build such as crest and muscling






17. Start of the reproductive tract for the female. located outside of the body






18. To remove/separate testicles from animal's body before animal reaches puberty






19. Birthing process (termination of gestation)






20. Failure to have both testis (gonads) descend






21. BST given to dairy cattle makes the mammary gland more persistent - helps produce more milk. good as Long-term because it does not cause cow to bulk up - provides more milk/cow Which means less cows needed - less cows need to be given feed - lower co






22. Castration tool that uses a band around the testicles which cuts off circulation and eventually the testicles fall off






23. Serves as a bone cradle for the reproductive system. used greatly in palpation as a 'landmark'.






24. Completes uterine growth initiated by estrogen and prepares the uterus for nourishment of developing embryo if pregnancy occurs - supports pregnancy by maintaining quiescent state of reproductive tract and suppresses mating behavior - prevents ovulat






25. Depository for semen during insemination. where urine leaves the body






26. Standing to be mounted (last one able to notice); mounting other animals; social behavior-restless - gregarious - activity - vocalizing; frequent urination; mucous discharge






27. Duct which connects epididymis to urethra of the penis. transports sperm at ejaculation. cut to sterilize male.






28. 14-19 (17) days






29. Check feet and legs - look for masculine traits in build such as crest and muscling






30. Examine accessory glands - also to know how big the pelvic opening is->heritable->relates to how much dystocia that bull's daughter has






31. (male) definition: duct located outside of the testes. 3 parts: head - body - tail. 4 Functions:concentrate sperm - store sperm - transport sperm - site of sperm maturation. entire process takes ~40-60 days






32. 1-2 days






33. Parturition is controlled by...






34. Microscopic - make sure not sterile - very few bulls are actually tested






35. Boars and stallions-> deliver semen directly into the cervix. bulls and rams-> deliver semen into the vagina.






36. (male) definition: duct located outside of the testes. 3 parts: head - body - tail. 4 Functions:concentrate sperm - store sperm - transport sperm - site of sperm maturation. entire process takes ~40-60 days






37. Contains and regulates the temp of the testes for sperm production






38. Knife-loose ~1wk of growth. band-loose ~2wks of growth.






39. Milk is 15% ________ and 85% __________.






40. (male) pushes the testes upward toward the body for warmth or protection






41. Can survive ~7 days in cow. vast majority <48 hours






42. Allows extension of penis without fibro-elastic penis






43. Scar tissue plugs up chambers of udder






44. Implies the amount of estrogen production






45. Duct through penis that carries sperm and urine






46. Sperm production






47. Gonadotropic (GnRH) is (FSH and LH). Follical Stimulating (FSH) and Lutinizing Hormone (LH).






48. Superior genes are _______ to multiply






49. Boars and stallions-> deliver semen directly into the cervix. bulls and rams-> deliver semen into the vagina.






50. Urinary calculi.